+
+
+def headersOnly(files):
+ """Filters 'files' so that only headers are left. Used with
+ <msvc-project-files> to add headers to VC++ projects but not files such
+ as arrimpl.cpp."""
+
+ def callback(cond, sources):
+ prf = suf = ''
+ if sources[0].isspace(): prefix=' '
+ if sources[-1].isspace(): suffix=' '
+ retval = []
+ for s in sources.split():
+ if s.endswith('.h'):
+ retval.append(s)
+ return '%s%s%s' % (prf, ' '.join(retval), suf)
+ return utils.substitute2(files, callback)